Connected: An Internet Encyclopedia
RFC 1122 - 3.2.2.5 Parameter Problem: RFC-792

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### 3.2.2.5 Parameter Problem: RFC-792

A host SHOULD generate Parameter Problem messages. An incoming Parameter Problem message MUST be passed to the transport layer, and it MAY be reported to the user.

DISCUSSION:

  The ICMP Parameter Problem message is sent to the source host for any problem not specifically covered by another ICMP message. Receipt of a Parameter Problem message generally indicates some local or remote implementation error.

A new variant on the Parameter Problem message is hereby defined:

Code 1 = required option is missing.

DISCUSSION:

  This variant is currently in use in the military community for a missing security option.

Next: 3.2.2.6 Echo Request/Reply: RFC-792

Connected: An Internet Encyclopedia
RFC 1122 - 3.2.2.5 Parameter Problem: RFC-792